Merged revisions 142865 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r142865 | tilghman | 2008-09-12 15:37:18 -0500 (Fri, 12 Sep 2008) | 11 lines
  
  Create rules for disallowing contacts at certain addresses, which may
  improve the security of various installations.  As this does not change
  any default behavior, it is not classified as a direct security fix for
  anything within Asterisk, but may help PBX admins better secure their
  SIP servers.
  (closes issue #11776)
   Reported by: ibc
   Patches: 
         20080829__bug11776.diff.txt uploaded by Corydon76 (license 14)
   Tested by: Corydon76, blitzrage
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@142866 65c4cc65-6c06-0410-ace0-fbb531ad65f3